@misc{indiciae980553ef7e0b,
  title = {Psychological changes in exercising COPD patients.},
  author = {R C Gayle and D L Spitler and W B Karper and R M Jaeger and S N Rice},
  year = {1988},
  doi = {10.1097/00004356-198812000-00002},
  url = {https://pubmed.ncbi.nlm.nih.gov/3269843/},
  note = {Source identifier: 3269843}
}